Got some very good performance results running many of these characters on a Nexus 7 tablet. The exported FBX file has 60 bones and 5k triangles. Mobile isn't for low resolution graphics anymore! The videos below show the animated rig in Softimage and the exported result running realtime in Unity.
Derek Jenson Blog
My website serves to archive experiments, document projects, share techniques, and motivate further exploration & artistry in 3d space.